One of the most accurate ways to determine a Chihuahua's age is by examining their teeth. Chihuahua puppies develop their permanent teeth between 5 and 7 months of age. By 8 to 12 months, all their adult teeth should be present. After three years old, you may notice slight wear on the front teeth of the upper and lower jaw. We can estimate a Chihuahua's approximate age by observing the extent of wear on their teeth.
As Chihuahuas grow, their teeth change with age. We can often use these dental changes to estimate their approximate age.
Teeth Characteristics at Different Ages of Chihuahuas
Generally, a Chihuahua's baby teeth will start falling out and be replaced by permanent teeth between 5 and 7 months old. If you see your Chihuahua losing baby teeth and the permanent teeth just beginning to emerge, it likely indicates that they are around 5 to 6 months old. If all the permanent teeth have grown in, this means they are around 8 to 12 months of age. For purebred Chihuahuas, the teeth tend to increase with age until they reach adulthood. Once adult, you can use the wear of their teeth to estimate their age. If the front upper and lower teeth show wear at the connecting part, the Chihuahua is likely over 3 years old. For dogs over 4 years old, the front teeth gradually become more flat. With older dogs, around 7 to 8 years old, we can assess the length of their teeth to help determine age.
What Causes Poor Dental Health in Chihuahuas?
1. Digestive Issues
If a Chihuahua has a sensitive stomach or digestive problems, they might have trouble digesting food, which can cause bad breath. In this case, the dog's digestive system should be addressed, and they should be given food that is easy to digest.
2. Oral Diseases
If a Chihuahua’s teeth appear "dirty", this could indicate tartar buildup. If your Chihuahua is drooling or has mouth ulcers, this may suggest an oral infection or gum disease. Pay close attention when your dog is teething.
3. Vitamin B Deficiency
A monotonous diet can result in a vitamin B deficiency, potentially leading to bad breath. Therefore, a balanced diet is essential for a Chihuahua's health.
4. Hygiene Habits
A direct cause of poor dental health in Chihuahuas is the gradual accumulation of plaque and tartar that is not regularly cleaned. Therefore, try to help your Chihuahua establish good brushing habits early in life.